Wednesday
December 11, 2013

# Posts by debbie

Total # Posts: 483

geometry
The endpoints of one diagonal of a rhombus are (0, -8) and (8, -4). If the coordinates of the 3rd vertex are (1, 0), what are the coordinates of the 4th vertex? (7, -12) (7, -8) (-8, -4) (-4, -12)

Economy Today
Do total profits (A) decrease, (B) increase, or (C) stay the same when new technology reduces average total costs (shifts ATC downward in Figure 26.2 ) in (a) An unregulated natural monopoly? (b) A price-regulated natural monopoly? (c) A profit-regulated natural monopoly?

Algebra 1
Solve by substitution 2x+3y=40.50 3x+y=38.00

Mathematical methods
Following completion of your weekly readings, complete the exercises in the “Projects” section on page 397 of Mathematics in Our World. You should be concise in your reasoning. For Project #1, work only equations (a) and (c), but complete all 6 steps (a-f) as shown i...

statistics
if a 2-tail p value is .56 and the alpha is .05 how do i interpret the results?

Finance
Assume WhirledCom has an issue of 15 year \$1000 par value bonds that pay 6% interest, semiannually Futher asssume that today's required rate of return on htese bonds is 9% How much would these bonds be worth today? Round off to the nearest \$1

nath
explain how you can add two fractions with denominators of 10 and end up with a sum whose denominator is 5.

statistics
In a poll of voters in a certain city, 32% said that they backed a bill which would limit growth and development in their city. The margin of error was reported as 1.7% with 90% confidence. Determine the bounds for the confidence interval. A. (88.3%, 91.7%) B. (30%, 34%) C. (3...